Dublin is the capital of, and largest city in, Ireland. It is on the east coast of Ireland, in the province of Leinster, at the mouth of the River Liffey, and is bordered on the south by the Wicklow mountains. It has an urban area population of 1,173,179, while the population of the Dublin Region (formerly County Dublin), as of 2016, was 1,347,359, and the population of the Greater Dublin area was 1,904,806.

There is archaeological debate regarding precisely where Dublin was established by Celtic-speaking people in the 7th century AD. Later expanded as a Viking settlement, the Kingdom of Dublin, the city became Ireland's principal settlement following the Norman invasion. The city expanded rapidly from the 17th century and was briefly the second largest city in the British Empire before the Acts of Union in 1800. Following the partition of Ireland in 1922, Dublin became the capital of the Irish Free State, later renamed Ireland.

Dublin is a historical and contemporary centre for education, the arts, administration and industry. As of 2018 the city was listed by the Globalization and World Cities Research Network (GaWC) as a global city, with a ranking of "Alpha -", which places it amongst the top thirty cities in the world.

Belfast is a port city in the United Kingdom and the capital city of Northern Ireland, on the banks of the River Lagan on the east coast of Ireland. It is the largest city in Northern Ireland and second largest on the island of Ireland. It had a population of 333,871 in 2015.

By the early 1800s Belfast was a major port. It played a key role in the Industrial Revolution, becoming the biggest linen producer in the world, earning it the nickname "Linenopolis". By the time it was granted city status in 1888, it was a major centre of Irish linen production, tobacco-processing and rope-making. Shipbuilding was also a key industry; the Harland and Wolff shipyard, where the RMS Titanic was built, was the world's biggest shipyard. It also has a major aerospace and missiles industry. Industrialisation and the inward migration it brought made Belfast Ireland's biggest city and it became the capital of Northern Ireland following the Partition of Ireland in 1922. Its status as a global industrial centre ended in the decades after the Second World War.

Belfast suffered greatly in the Troubles, and in the 1970s and 1980s was one of the world's most dangerous cities. However, the city is now considered to be one of the safest within the United Kingdom. Throughout the 21st century, the city has seen a sustained period of calm, free from the intense political violence of former years and has benefitted from substantial economic and commercial growth. Belfast remains a centre for industry, as well as the arts, higher education, business, and law, and is the economic engine of Northern Ireland. Belfast is still a major port, with commercial and industrial docks dominating the Belfast Lough shoreline, including the Harland and Wolff shipyard. It is served by two airports: George Best Belfast City Airport, and Belfast International Airport 15 miles (24 km) west of the city. It is listed by the Globalization and World Cities Research Network (GaWC) as a Gamma global city.

Liverpool is a city in North West England, with an estimated population of 491,500 in 2017. Its metropolitan area is the fifth largest in the UK, with a population of 2.24 million in 2011. The City of Liverpool City Council is the most populous city of Liverpool City District.
 

It is a country where the county of Lancashire is located. It became a borough in 1207 and a city in 1880. In 1889, it became a county borough independent of Lancashire. The industrial revolution has been Along with cargo, freight, freight, raw materials, such as coal and cotton, were involved in the Atlantic slave trade. In the 19th century, it was a major departure for Irish and English emigrants to North America. The RMS Titanic, the RMS Lusitania, the RMS Queen Mary and the RMS Olympic Line.

There is no need for a lot of money. League of football clubs, Liverpool and Everton matches The Grand National Horse Race takes place annually at Aintree Racecourse on the outskirts of the city.

Celebrated in 2007. In 2008, it was nominated by the European Capital of Culture together with Stavanger, Norway. [9] The Liverpool Maritime Mercantile City includes the Pier Head, Albert Dock, and William Brown Street. It has been one of the most diverse cities of the world. The city is also the home of the oldest Chinese community in Europe.

Liverpool and colloquially as "scousers", a reference to "scouse", and a form of stew. The word "Scouse" has also become synonymous with the Liverpool accent and dialect.